Steam-boiler



s. F. SWANSUN.

STEAM BOILER.

APPLICATroN F1LED1UNE12, 1919.

1,375,616. Y Patented Apr. 19,1921.

3 SHEETS-SHEET 2.

S. F. SWANSON. STEAM BOILER. APPLICATION FxL-ED1uNE 12.1919.

3 sHEETssHEET a.

Patented Apr. 19,1921.

SWAN F. SWANSON, OF PUEBLO, COLORADO.

STEAM-BOILER.

Specification of Letters Patent.

Patented Apr. 19, 1921.

Application led June 12, 1919. Serial No. 303,563.

T 0 all whom t may conce/Mt.'

Be it known that I, SWAN F. Swanson, a citizen of the United States, and residing at Pueblo, in the county of Pueblo and State of Colorado, have invented new and useful Improvements in Steam-Boilers, of which the following is a specification.

My present invention relates to steam boilers, and particularly to a boiler adapted for use on a self-propelled vehicle, and in other like connections.

An object of the invention is to provide a boiler adapted for use with a hydro-carbon burner which is compact in its arrangement and which presents a maximum heating sur- -face through a peculiar arrangement of 'water tubes.

A further object resides in so constructing the boiler that there is little likelihood of scale forming within the water tubes to lessen the eiciency of the boiler, and in providing a mud drum into which mud and other sedimentary matter is deposited by the natural flow of water in the boiler'from' the feed water supply.

Yet another object is to provide, in conjunction with the water tubes, a dry steam drum'with a steamoutlet pipe. for conducting the -dry steam to the place where it is to be used. A

With these and other objects in view, which will be apparent from the specification, drawings, and claims, .this invention includes certain novel features of construction and combinations of parts which will now be set forth.

In the drawings:

Figure 1 is avview in side elevation and in partialbroken section of the front portion of an automobile showing my improved boiler in relative position.

Fig. 2 is a view in plan, and with portions in section, illustrating the relative arrangement of thevarious parts of my boiler.

Fig. 3 Yis an end elevation of the'boiler taken from the front. Y

Fig-4 is a broken sectionall'view through the dry steam drum to better disclose the connection of the vertical water tubes therewith. Fig. 5 is a view similar to Fig. 4 illustrating the connection of the steam outlet pipe with the dry steam drum.

Fig. 6 is a detail sectional view showing the connection of the primary water manifolds and the water column with the water distributing manifold and illustrating the fitting of the clean-out plug therefor. y

Fig. 7 is a fragmentary view partly in section of the mud drum and blow-off valve.

As disclosed in Fig. 1, the chassis frame of an automobile is shown at 1, this frame being mounted and suspended in any approved manner to be carried by the wheels, and a hood 2, similar to the usual engine hood of a gasolene propelled motor car is carried on the forward end of the frame. The hood in this instance incloses a heat insulating jacket 3, built up of asbestos sheets or other suitable material, within which the boiler structure, the heating burners, and the other elements are housed.

A water distributing manifold 4: is made of a length corresponding substantially to the width intended for the completed boiler, and a mud drum 5 isL of the same length. Primary water manifolds 6 are tted in openings formed along one side of said distributing manifold and have their vends upset, are brazed, welded, or are otherwisev secured to be integral therewith. These primary manifolds are disposed to line in the same horizontal plane, and the free end of each manifold 6 isbent over and is connected vertically with the upper side of mud drum 5, this mud drum being horizontally disposed and extendingparallel with; dis-V tributing manifold 4f. n

A plurality of vertical water tubes 7 are connected in spaced relation through the top of each of the primary manifolds 6, and at l ystantially parallel with the horizontally eX.-

tending water manifolds 6, and in each instance the vertical YWater tubes curve in to connect therewith. A* steam outlet'or sup# ply pipe 9 is connected through the top of steam drum 8, as shown in Fig.`5, or at some other convenient or practical point, and this steam pipe is led tothe vehicle propelling engineV or to somelother point where the steam generated in the boiler is to be used. Suitable steamsupply control valves or other mechanism forthis purpose will be included in the line embracing pipe 9, but as this is not a part of my vpresent invention such structure is not here shown.

A water column 10 is connectedvertically and substantially centrally with distributing manifold 4, and extending upwardly has connection with the forward end of steam drum 8. A feed water supply pipe .11 is led from a feed water pump, a gravity feed v tank, or other suitable source of water supoutopening 13, as best shown in Fig. 6,

and screw plugs 14 are provided to close these openings. By reason of thefact that the water in water tubes 7 at no time rises to a level within the curved portions thereof, scale forming and other sedimentary matter will be precipitated by gravity settling into primary manifolds 6, and as the supply of feed water to these manifolds is from distributing manifold at the forward end, the wash of `feed water will carry this precipitated matter toward mud drum 5 into which it will deposit by gravity through thevertically extending bent ends of primary manifolds 6. y y

Ifperchance the flow of feed water be not suliciently strong to carry the sedimentary matter to the mud drum or if the use of foul water causes heavy precipitation, any one or each of the primary manifolds can be cleaned and even scraped by removing plug 14 closing the cleaning opening Y 13 in line therewith. To discharge mud and other extraneous matter trapped in drum 5 y y a blow-off valve 15 is connected therewith at a low point.

A suitable oil or other burner structure i is provided at 16 beneath the primary manifolds 6 and fuel is piped or supplied to the burner as maybe desired.

Inithe use of my improved boiler, with i all of the plugs 14 in place and the blow- `curved portions of the water tubes.

off valve 15 closed, water is supplied through feed water pipe 11 to the desired level. The fire is now lighted under the boiler and the heattherefrom `rises between primary manifolds 6, around the vertical portions of the water tubes 7 andthen passes up about the drysteam drum 8 and through between the As the Water withinthe vertical tubes is heated steam vis generated which rises to the curved portions of the tubes; Here the steam is further heated and it is then discharged into drum 8 as dry steam. As the water within the boiler `is evaporated additional water is supplied to `maintain the proper water level, and as the feed is from theV Jforwardends of 4the several primary manifolds 6 toward the rear ends thereof which connect with the mud drum 5, sedimentary matter failing to secure depositing hold ,upon the vertical water tubes is precipitated use, and have mentioned only certain possible modifications, it is to be understood that in practice I do not wish to limit myself to such specific details as are herein set forth, but may resort to any practical modifications falling Vwithin the scope of the invention as defined in the appended claims.

VI claim:

1. A steam boiler including with a water distributing manifold, aV plurality of primary water manifolds each connected at one end with said distributing manifold and extending in parallel relation in a horizontal plane, a mud drum to which the remaining end of each of said primary manifolds is connected, a dry steam drum disposed above and parallel with said primary manifolds,

and `parallel with said primary manifolds,

a plurality `of water tubes associated with each of said primary manifolds extending vertically upwardly therefrom and each curved over at its upper end to vconnect with said steam drum, a feed water supply connection to said distributing manifold, and a blow-ofip valve to discharge said mud-drum.

3. A steam boiler including with a water distributing manifold, a plurality .of primary watermanifolds each connected atone end withsaid distributing manifold and extending in parallel relationin a horizontal plane, a mud drum to which the remaining .rend of each of said primary manifolds is connected, a dry steam drum disposed above and parallel with said primary manifolds, a plurality of water tubes associated with each of said primary manifolds extending vertically upwardly therefrom and ,each connected at its upper end with said steam drum, a vertical water column connected with said steam drum and with said distributing manifold, and a feed water supply pipe joined with said water column below the connection to said steam drum.

4. A steam boiler including with a horizontally disposed water distributing manifold, a plurality of primary water manifolds joined with said distributing manifold and lying in the same horizontal plane therewith, a plurality of vertical water tubes connected throughout the body portion of each of said primary manifolds, a steam drum with which each of said vertical water tubes is connected at its upper end, said distributing manifold having openings formed therein in line with the several primary manifolds with means to close the same and 15 connected, and a blow-0E from said mud 20 drum. Y

In testimony whereof, I ax my signature.

SWAN F. swANsoN. 

